//Accepted
#include <vector>
#include <set>
#include <algorithm>
#include <string>
#include <cmath>
#include <queue>
#include <map>
#include <iostream>
#include <list>
#include <deque>
#include <cstdio>
#include <cstring>
#include <cstdlib>
using namespace std;
#define eps 1e-8

int main (){
	//freopen("in.txt", "r", stdin);//freopen("out.txt", "w", stdout);
	int n, vb, vs, i, j, a[100];
	double d, s=2000000000.0;
	long long x, y;
	
	scanf("%d%d%d", &n, &vb, &vs);
	for(i=0;i<n;++i)scanf("%d", &a[i]);
	cin>>x>>y;
	
	if(vs>vb)printf("2");
	else{
		y*=y;
		for(i=1;i<n;++i){
			d= sqrt( (x-a[i])*(x-a[i])  +  y )/vs + (double)a[i]/vb;
			if((d-eps)<=(s-eps)){
				s=d;
				j=i;
			}
		}
		printf("%d", j+1);
	}
	return 0;
}
